Temperature Distribution Analysis of a Switched Reluctance Linear Launcher

Chen, Hao; Lv, Sen; Wang, Qianlong

doi:10.1109/tps.2013.2246192

Cited by 13 publications

(3 citation statements)

References 11 publications

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“…Notice that (14) gives the average value of the force produced by each excitation circuit. The impulse value is obtained by calculating the change in vehicle's momentum (15), where Δv is vehicle speed variation. Thus, 16 and 17, results begin to differ nearing 0.6 m/s.…”

Section: B Vehicle Dynamics: Simulation and Experimental Resultsmentioning

confidence: 99%

See 1 more Smart Citation

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

Branco

Almeida

Dente

2014

IEEE Trans. Ind. Electron.

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A new YBCO superconducting linear propulsion system that uses the Meissner effect for thrust is proposed. A YBCO bulk is used in the vehicle, which is excited synchronous with a magnetic field traveling wave. The propulsion system's model is developed using a magnetic circuit method and the Maxwell stress tensor analysis. The vehicle acceleration and thrust force characteristics previewed from that model are verified and analyzed by practical measurements and a set of essays using the prototype built in our laboratory. Major errors came for thermally activated flux creep and current conduction in the YBCO during its passage through the excitation system. The total magnetic field at the superconductor's surface decreases, reducing thrust force. Despite these secondary effects, achieved results show the potential of this new approach for future electric propulsion systems.

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Section: B Vehicle Dynamics: Simulation and Experimental Resultsmentioning

confidence: 99%

“… 15. shows the electrical current pulses delivered to the magnetic circuits as the 300-g vehicle passes and plots its position.The simulation and experimental vehicle speed results are plotted inFig.…”

mentioning

confidence: 99%

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

Branco

Almeida

Dente

2014

IEEE Trans. Ind. Electron.

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“…The control parameters of SRG are turn-on and turnoff angles and phase current [7][8][9][10]. Since the nonlinear of SRG, it is challenge work to control the machine well [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Research on the control strategy of switched reluctance generator system

Cheng

et al. 2014

2014 International Power Electronics and Application Conference and Exposition

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The principle of switched reluctance generator (SRG) is introduced. And the compositions of switched reluctance generator system are given. Two main circuit structures of SRG system are compared to select the better one, i.e., self-excitation pattern and separate pattern. The control strategy of SRG system is put forward. Fixed angle PWM duty cycle control is used at low and medium speed. Fixed PWM angle control is adopted at high speed. Fuzzy controller is chosen as the main controller since it has the advantages of robustness. The flow charts of the two control modes are given. The generating experiments with different conditions are carried out to study on the generating characteristics of SRG, such as different PWM duty cycle, angles, load and speed. At last, the experimental results were analyzed in detail, which verified the rationality and feasibility of the proposed control strategy and designed SRG system.

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Optimization analysis of moving magnet motor for stirling cryocooler

Huo¹,

Wang²,

An³

et al. 2015

2015 IEEE NW Russia Young Researchers in Electrical and Electronic Engineering Conference (EIConRusNW)

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The LIP has developed space cryogenics since 2000, and has taken great progress in Stirling cryocooler. For domestic and potential application in future in space mission, a large cooling capacity Stirling cryocooler with a heat lift of .oW at 260W electric power input has been developed. In order to meet the rigor demand for large impulse, high efficient and tight compactness, the moving coil motor and moving magnet motor has been evaluated through analysis. The moving magnet motor performs high efficient and better compactness. A moving magnet motor is new to LIP. The magnet circuit for elements tests was evaluated by a basic equation and computed by multi purpose FEM software. The results from the element tests and calculation data were used for improving design. This paper describes the development the motor design and analysis results.

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Temperature Distribution Analysis of a Switched Reluctance Linear Launcher

Cited by 13 publications

References 11 publications

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

Research on the control strategy of switched reluctance generator system

Optimization analysis of moving magnet motor for stirling cryocooler

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